Thread loop taker device of a zigzag sewing machine

Details Thread loop taker device of a zigzag sewing machine Thread loop taker device of a zigzag sewing machine

1985-02-19

1987-05-05

Reynolds, Wm. Carter

Sewing

Stitch forming

Revolving-hook type

112467, 112230, D05B 5708

Patent

active

046622926

ABSTRACT:
A thread loop taker device for a zigzag sewing machine having a needle whose position is controlled by electronically stored data which cooperates with the thread loop taker device to thereby produce zigzag stitches. The thread loop taker device comprises a bobbin carrier, a rotational cylindrical member for supporting the bobbin carrier therein; a loop taker coaxial with and about the cylindrical member for rotation therewith, the loop taker having a beak extending from one end and in the direction of the rotation around a portion of the cylindrical member for catching a thread loop formed by the needle; cams rotating with the cylindrical member and engaging the opposite end of the loop taker for rotating the beak relative to the cylindrical member; and a pulse motor movable in two opposite directions in response to a change in the position of the needle so that, when this movement is transmitted to the cams, the loop taker is actuated. Thus, the beak rotates relative to the cylindrical member in response to a change in the position of the needle during rotation of the cylindrical member.

REFERENCES:
patent: 1159523 (1915-11-01), Miller
patent: 2989017 (1961-06-01), Taketomi
patent: 4299180 (1981-10-01), Kume et al.
patent: 4357887 (1982-11-01), Hara et al.

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